code: def testJaxToCuPy(self, shape, dtype):
      rng = jtu.rand_default(self.rng())
      x = rng(shape, dtype)
      y = jnp.array(x)
      z = cupy.asarray(y)
      self.assertEqual(
          y.__cuda_array_interface__["data"][0],
          z.__cuda_array_interface__["data"][0],
      )
      self.assertAllClose(x, cupy.asnumpy(z))
  
imports: import unittest
  from absl.testing import absltest
  import jax
  import jax.dlpack
  import jax.numpy
  from jax._src import config
  from jax._src import test_util
  from jax._src import xla_bridge
  from jax._src.lib import xla_extension_version
  import numpy
label_desc: Use image node_id 4 for calling the CudaArrayInterfaceTest obj's underlying member method code with example usage: obj.testJaxToCuPy(shape, dtype) without return types